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<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>Document</title>
</head>
<body>
  <script>
    class Person {
      static test(params) {
        console.log('静态方法');
        
      }
    }
    Person.test()
    Person.test = () => {
      console.log('00999');
      
    }
    Person.test()
  </script>
</body>
</html>